| 1 | /* GDB routines for supporting auto-loaded scripts. |
| 2 | |
| 3 | Copyright (C) 2012-2018 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | #include <ctype.h> |
| 22 | #include "auto-load.h" |
| 23 | #include "progspace.h" |
| 24 | #include "gdb_regex.h" |
| 25 | #include "ui-out.h" |
| 26 | #include "filenames.h" |
| 27 | #include "command.h" |
| 28 | #include "observable.h" |
| 29 | #include "objfiles.h" |
| 30 | #include "cli/cli-script.h" |
| 31 | #include "gdbcmd.h" |
| 32 | #include "cli/cli-cmds.h" |
| 33 | #include "cli/cli-decode.h" |
| 34 | #include "cli/cli-setshow.h" |
| 35 | #include "readline/tilde.h" |
| 36 | #include "completer.h" |
| 37 | #include "fnmatch.h" |
| 38 | #include "top.h" |
| 39 | #include "filestuff.h" |
| 40 | #include "extension.h" |
| 41 | #include "gdb/section-scripts.h" |
| 42 | #include <algorithm> |
| 43 | #include "common/pathstuff.h" |
| 44 | |
| 45 | /* The section to look in for auto-loaded scripts (in file formats that |
| 46 | support sections). |
| 47 | Each entry in this section is a record that begins with a leading byte |
| 48 | identifying the record type. |
| 49 | At the moment we only support one record type: A leading byte of 1, |
| 50 | followed by the path of a python script to load. */ |
| 51 | #define AUTO_SECTION_NAME ".debug_gdb_scripts" |
| 52 | |
| 53 | static void maybe_print_unsupported_script_warning |
| 54 | (struct auto_load_pspace_info *, struct objfile *objfile, |
| 55 | const struct extension_language_defn *language, |
| 56 | const char *section_name, unsigned offset); |
| 57 | |
| 58 | static void maybe_print_script_not_found_warning |
| 59 | (struct auto_load_pspace_info *, struct objfile *objfile, |
| 60 | const struct extension_language_defn *language, |
| 61 | const char *section_name, unsigned offset); |
| 62 | |
| 63 | /* Value of the 'set debug auto-load' configuration variable. */ |
| 64 | static int debug_auto_load = 0; |
| 65 | |
| 66 | /* "show" command for the debug_auto_load configuration variable. */ |
| 67 | |
| 68 | static void |
| 69 | show_debug_auto_load (struct ui_file *file, int from_tty, |
| 70 | struct cmd_list_element *c, const char *value) |
| 71 | { |
| 72 | fprintf_filtered (file, _("Debugging output for files " |
| 73 | "of 'set auto-load ...' is %s.\n"), |
| 74 | value); |
| 75 | } |
| 76 | |
| 77 | /* User-settable option to enable/disable auto-loading of GDB_AUTO_FILE_NAME |
| 78 | scripts: |
| 79 | set auto-load gdb-scripts on|off |
| 80 | This is true if we should auto-load associated scripts when an objfile |
| 81 | is opened, false otherwise. */ |
| 82 | static int auto_load_gdb_scripts = 1; |
| 83 | |
| 84 | /* "show" command for the auto_load_gdb_scripts configuration variable. */ |
| 85 | |
| 86 | static void |
| 87 | show_auto_load_gdb_scripts (struct ui_file *file, int from_tty, |
| 88 | struct cmd_list_element *c, const char *value) |
| 89 | { |
| 90 | fprintf_filtered (file, _("Auto-loading of canned sequences of commands " |
| 91 | "scripts is %s.\n"), |
| 92 | value); |
| 93 | } |
| 94 | |
| 95 | /* Return non-zero if auto-loading gdb scripts is enabled. */ |
| 96 | |
| 97 | int |
| 98 | auto_load_gdb_scripts_enabled (const struct extension_language_defn *extlang) |
| 99 | { |
| 100 | return auto_load_gdb_scripts; |
| 101 | } |
| 102 | |
| 103 | /* Internal-use flag to enable/disable auto-loading. |
| 104 | This is true if we should auto-load python code when an objfile is opened, |
| 105 | false otherwise. |
| 106 | |
| 107 | Both auto_load_scripts && global_auto_load must be true to enable |
| 108 | auto-loading. |
| 109 | |
| 110 | This flag exists to facilitate deferring auto-loading during start-up |
| 111 | until after ./.gdbinit has been read; it may augment the search directories |
| 112 | used to find the scripts. */ |
| 113 | int global_auto_load = 1; |
| 114 | |
| 115 | /* Auto-load .gdbinit file from the current directory? */ |
| 116 | int auto_load_local_gdbinit = 1; |
| 117 | |
| 118 | /* Absolute pathname to the current directory .gdbinit, if it exists. */ |
| 119 | char *auto_load_local_gdbinit_pathname = NULL; |
| 120 | |
| 121 | /* Boolean value if AUTO_LOAD_LOCAL_GDBINIT_PATHNAME has been loaded. */ |
| 122 | int auto_load_local_gdbinit_loaded = 0; |
| 123 | |
| 124 | /* "show" command for the auto_load_local_gdbinit configuration variable. */ |
| 125 | |
| 126 | static void |
| 127 | show_auto_load_local_gdbinit (struct ui_file *file, int from_tty, |
| 128 | struct cmd_list_element *c, const char *value) |
| 129 | { |
| 130 | fprintf_filtered (file, _("Auto-loading of .gdbinit script from current " |
| 131 | "directory is %s.\n"), |
| 132 | value); |
| 133 | } |
| 134 | |
| 135 | /* Directory list from which to load auto-loaded scripts. It is not checked |
| 136 | for absolute paths but they are strongly recommended. It is initialized by |
| 137 | _initialize_auto_load. */ |
| 138 | static char *auto_load_dir; |
| 139 | |
| 140 | /* "set" command for the auto_load_dir configuration variable. */ |
| 141 | |
| 142 | static void |
| 143 | set_auto_load_dir (const char *args, int from_tty, struct cmd_list_element *c) |
| 144 | { |
| 145 | /* Setting the variable to "" resets it to the compile time defaults. */ |
| 146 | if (auto_load_dir[0] == '\0') |
| 147 | { |
| 148 | xfree (auto_load_dir); |
| 149 | auto_load_dir = xstrdup (AUTO_LOAD_DIR); |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | /* "show" command for the auto_load_dir configuration variable. */ |
| 154 | |
| 155 | static void |
| 156 | show_auto_load_dir (struct ui_file *file, int from_tty, |
| 157 | struct cmd_list_element *c, const char *value) |
| 158 | { |
| 159 | fprintf_filtered (file, _("List of directories from which to load " |
| 160 | "auto-loaded scripts is %s.\n"), |
| 161 | value); |
| 162 | } |
| 163 | |
| 164 | /* Directory list safe to hold auto-loaded files. It is not checked for |
| 165 | absolute paths but they are strongly recommended. It is initialized by |
| 166 | _initialize_auto_load. */ |
| 167 | static char *auto_load_safe_path; |
| 168 | |
| 169 | /* Vector of directory elements of AUTO_LOAD_SAFE_PATH with each one normalized |
| 170 | by tilde_expand and possibly each entries has added its gdb_realpath |
| 171 | counterpart. */ |
| 172 | std::vector<gdb::unique_xmalloc_ptr<char>> auto_load_safe_path_vec; |
| 173 | |
| 174 | /* Expand $datadir and $debugdir in STRING according to the rules of |
| 175 | substitute_path_component. */ |
| 176 | |
| 177 | static std::vector<gdb::unique_xmalloc_ptr<char>> |
| 178 | auto_load_expand_dir_vars (const char *string) |
| 179 | { |
| 180 | char *s = xstrdup (string); |
| 181 | substitute_path_component (&s, "$datadir", gdb_datadir); |
| 182 | substitute_path_component (&s, "$debugdir", debug_file_directory); |
| 183 | |
| 184 | if (debug_auto_load && strcmp (s, string) != 0) |
| 185 | fprintf_unfiltered (gdb_stdlog, |
| 186 | _("auto-load: Expanded $-variables to \"%s\".\n"), s); |
| 187 | |
| 188 | std::vector<gdb::unique_xmalloc_ptr<char>> dir_vec |
| 189 | = dirnames_to_char_ptr_vec (s); |
| 190 | xfree(s); |
| 191 | |
| 192 | return dir_vec; |
| 193 | } |
| 194 | |
| 195 | /* Update auto_load_safe_path_vec from current AUTO_LOAD_SAFE_PATH. */ |
| 196 | |
| 197 | static void |
| 198 | auto_load_safe_path_vec_update (void) |
| 199 | { |
| 200 | unsigned len; |
| 201 | int ix; |
| 202 | |
| 203 | if (debug_auto_load) |
| 204 | fprintf_unfiltered (gdb_stdlog, |
| 205 | _("auto-load: Updating directories of \"%s\".\n"), |
| 206 | auto_load_safe_path); |
| 207 | |
| 208 | auto_load_safe_path_vec = auto_load_expand_dir_vars (auto_load_safe_path); |
| 209 | |
| 210 | /* Apply tilde_expand and gdb_realpath to each AUTO_LOAD_SAFE_PATH_VEC |
| 211 | element. */ |
| 212 | for (gdb::unique_xmalloc_ptr<char> &in_vec : auto_load_safe_path_vec) |
| 213 | { |
| 214 | gdb::unique_xmalloc_ptr<char> expanded (tilde_expand (in_vec.get ())); |
| 215 | gdb::unique_xmalloc_ptr<char> real_path = gdb_realpath (expanded.get ()); |
| 216 | |
| 217 | /* Ensure the current entry is at least tilde_expand-ed. ORIGINAL makes |
| 218 | sure we free the original string. */ |
| 219 | gdb::unique_xmalloc_ptr<char> original = std::move (in_vec); |
| 220 | in_vec = std::move (expanded); |
| 221 | |
| 222 | if (debug_auto_load) |
| 223 | { |
| 224 | if (strcmp (in_vec.get (), original.get ()) == 0) |
| 225 | fprintf_unfiltered (gdb_stdlog, |
| 226 | _("auto-load: Using directory \"%s\".\n"), |
| 227 | in_vec.get ()); |
| 228 | else |
| 229 | fprintf_unfiltered (gdb_stdlog, |
| 230 | _("auto-load: Resolved directory \"%s\" " |
| 231 | "as \"%s\".\n"), |
| 232 | original.get (), in_vec.get ()); |
| 233 | } |
| 234 | |
| 235 | /* If gdb_realpath returns a different content, append it. */ |
| 236 | if (strcmp (real_path.get (), in_vec.get ()) != 0) |
| 237 | { |
| 238 | if (debug_auto_load) |
| 239 | fprintf_unfiltered (gdb_stdlog, |
| 240 | _("auto-load: And canonicalized as \"%s\".\n"), |
| 241 | real_path.get ()); |
| 242 | |
| 243 | auto_load_safe_path_vec.push_back (std::move (real_path)); |
| 244 | } |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | /* Variable gdb_datadir has been set. Update content depending on $datadir. */ |
| 249 | |
| 250 | static void |
| 251 | auto_load_gdb_datadir_changed (void) |
| 252 | { |
| 253 | auto_load_safe_path_vec_update (); |
| 254 | } |
| 255 | |
| 256 | /* "set" command for the auto_load_safe_path configuration variable. */ |
| 257 | |
| 258 | static void |
| 259 | set_auto_load_safe_path (const char *args, |
| 260 | int from_tty, struct cmd_list_element *c) |
| 261 | { |
| 262 | /* Setting the variable to "" resets it to the compile time defaults. */ |
| 263 | if (auto_load_safe_path[0] == '\0') |
| 264 | { |
| 265 | xfree (auto_load_safe_path); |
| 266 | auto_load_safe_path = xstrdup (AUTO_LOAD_SAFE_PATH); |
| 267 | } |
| 268 | |
| 269 | auto_load_safe_path_vec_update (); |
| 270 | } |
| 271 | |
| 272 | /* "show" command for the auto_load_safe_path configuration variable. */ |
| 273 | |
| 274 | static void |
| 275 | show_auto_load_safe_path (struct ui_file *file, int from_tty, |
| 276 | struct cmd_list_element *c, const char *value) |
| 277 | { |
| 278 | const char *cs; |
| 279 | |
| 280 | /* Check if user has entered either "/" or for example ":". |
| 281 | But while more complicate content like ":/foo" would still also |
| 282 | permit any location do not hide those. */ |
| 283 | |
| 284 | for (cs = value; *cs && (*cs == DIRNAME_SEPARATOR || IS_DIR_SEPARATOR (*cs)); |
| 285 | cs++); |
| 286 | if (*cs == 0) |
| 287 | fprintf_filtered (file, _("Auto-load files are safe to load from any " |
| 288 | "directory.\n")); |
| 289 | else |
| 290 | fprintf_filtered (file, _("List of directories from which it is safe to " |
| 291 | "auto-load files is %s.\n"), |
| 292 | value); |
| 293 | } |
| 294 | |
| 295 | /* "add-auto-load-safe-path" command for the auto_load_safe_path configuration |
| 296 | variable. */ |
| 297 | |
| 298 | static void |
| 299 | add_auto_load_safe_path (const char *args, int from_tty) |
| 300 | { |
| 301 | char *s; |
| 302 | |
| 303 | if (args == NULL || *args == 0) |
| 304 | error (_("\ |
| 305 | Directory argument required.\n\ |
| 306 | Use 'set auto-load safe-path /' for disabling the auto-load safe-path security.\ |
| 307 | ")); |
| 308 | |
| 309 | s = xstrprintf ("%s%c%s", auto_load_safe_path, DIRNAME_SEPARATOR, args); |
| 310 | xfree (auto_load_safe_path); |
| 311 | auto_load_safe_path = s; |
| 312 | |
| 313 | auto_load_safe_path_vec_update (); |
| 314 | } |
| 315 | |
| 316 | /* "add-auto-load-scripts-directory" command for the auto_load_dir configuration |
| 317 | variable. */ |
| 318 | |
| 319 | static void |
| 320 | add_auto_load_dir (const char *args, int from_tty) |
| 321 | { |
| 322 | char *s; |
| 323 | |
| 324 | if (args == NULL || *args == 0) |
| 325 | error (_("Directory argument required.")); |
| 326 | |
| 327 | s = xstrprintf ("%s%c%s", auto_load_dir, DIRNAME_SEPARATOR, args); |
| 328 | xfree (auto_load_dir); |
| 329 | auto_load_dir = s; |
| 330 | } |
| 331 | |
| 332 | /* Implementation for filename_is_in_pattern overwriting the caller's FILENAME |
| 333 | and PATTERN. */ |
| 334 | |
| 335 | static int |
| 336 | filename_is_in_pattern_1 (char *filename, char *pattern) |
| 337 | { |
| 338 | size_t pattern_len = strlen (pattern); |
| 339 | size_t filename_len = strlen (filename); |
| 340 | |
| 341 | if (debug_auto_load) |
| 342 | fprintf_unfiltered (gdb_stdlog, _("auto-load: Matching file \"%s\" " |
| 343 | "to pattern \"%s\"\n"), |
| 344 | filename, pattern); |
| 345 | |
| 346 | /* Trim trailing slashes ("/") from PATTERN. Even for "d:\" paths as |
| 347 | trailing slashes are trimmed also from FILENAME it still matches |
| 348 | correctly. */ |
| 349 | while (pattern_len && IS_DIR_SEPARATOR (pattern[pattern_len - 1])) |
| 350 | pattern_len--; |
| 351 | pattern[pattern_len] = '\0'; |
| 352 | |
| 353 | /* Ensure auto_load_safe_path "/" matches any FILENAME. On MS-Windows |
| 354 | platform FILENAME even after gdb_realpath does not have to start with |
| 355 | IS_DIR_SEPARATOR character, such as the 'C:\x.exe' filename. */ |
| 356 | if (pattern_len == 0) |
| 357 | { |
| 358 | if (debug_auto_load) |
| 359 | fprintf_unfiltered (gdb_stdlog, |
| 360 | _("auto-load: Matched - empty pattern\n")); |
| 361 | return 1; |
| 362 | } |
| 363 | |
| 364 | for (;;) |
| 365 | { |
| 366 | /* Trim trailing slashes ("/"). PATTERN also has slashes trimmed the |
| 367 | same way so they will match. */ |
| 368 | while (filename_len && IS_DIR_SEPARATOR (filename[filename_len - 1])) |
| 369 | filename_len--; |
| 370 | filename[filename_len] = '\0'; |
| 371 | if (filename_len == 0) |
| 372 | { |
| 373 | if (debug_auto_load) |
| 374 | fprintf_unfiltered (gdb_stdlog, |
| 375 | _("auto-load: Not matched - pattern \"%s\".\n"), |
| 376 | pattern); |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | if (gdb_filename_fnmatch (pattern, filename, FNM_FILE_NAME | FNM_NOESCAPE) |
| 381 | == 0) |
| 382 | { |
| 383 | if (debug_auto_load) |
| 384 | fprintf_unfiltered (gdb_stdlog, _("auto-load: Matched - file " |
| 385 | "\"%s\" to pattern \"%s\".\n"), |
| 386 | filename, pattern); |
| 387 | return 1; |
| 388 | } |
| 389 | |
| 390 | /* Trim trailing FILENAME component. */ |
| 391 | while (filename_len > 0 && !IS_DIR_SEPARATOR (filename[filename_len - 1])) |
| 392 | filename_len--; |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | /* Return 1 if FILENAME matches PATTERN or if FILENAME resides in |
| 397 | a subdirectory of a directory that matches PATTERN. Return 0 otherwise. |
| 398 | gdb_realpath normalization is never done here. */ |
| 399 | |
| 400 | static ATTRIBUTE_PURE int |
| 401 | filename_is_in_pattern (const char *filename, const char *pattern) |
| 402 | { |
| 403 | char *filename_copy, *pattern_copy; |
| 404 | |
| 405 | filename_copy = (char *) alloca (strlen (filename) + 1); |
| 406 | strcpy (filename_copy, filename); |
| 407 | pattern_copy = (char *) alloca (strlen (pattern) + 1); |
| 408 | strcpy (pattern_copy, pattern); |
| 409 | |
| 410 | return filename_is_in_pattern_1 (filename_copy, pattern_copy); |
| 411 | } |
| 412 | |
| 413 | /* Return 1 if FILENAME belongs to one of directory components of |
| 414 | AUTO_LOAD_SAFE_PATH_VEC. Return 0 otherwise. |
| 415 | auto_load_safe_path_vec_update is never called. |
| 416 | *FILENAME_REALP may be updated by gdb_realpath of FILENAME. */ |
| 417 | |
| 418 | static int |
| 419 | filename_is_in_auto_load_safe_path_vec (const char *filename, |
| 420 | gdb::unique_xmalloc_ptr<char> *filename_realp) |
| 421 | { |
| 422 | const char *pattern = NULL; |
| 423 | |
| 424 | for (const gdb::unique_xmalloc_ptr<char> &p : auto_load_safe_path_vec) |
| 425 | if (*filename_realp == NULL && filename_is_in_pattern (filename, p.get ())) |
| 426 | { |
| 427 | pattern = p.get (); |
| 428 | break; |
| 429 | } |
| 430 | |
| 431 | if (pattern == NULL) |
| 432 | { |
| 433 | if (*filename_realp == NULL) |
| 434 | { |
| 435 | *filename_realp = gdb_realpath (filename); |
| 436 | if (debug_auto_load && strcmp (filename_realp->get (), filename) != 0) |
| 437 | fprintf_unfiltered (gdb_stdlog, |
| 438 | _("auto-load: Resolved " |
| 439 | "file \"%s\" as \"%s\".\n"), |
| 440 | filename, filename_realp->get ()); |
| 441 | } |
| 442 | |
| 443 | if (strcmp (filename_realp->get (), filename) != 0) |
| 444 | for (const gdb::unique_xmalloc_ptr<char> &p : auto_load_safe_path_vec) |
| 445 | if (filename_is_in_pattern (filename_realp->get (), p.get ())) |
| 446 | { |
| 447 | pattern = p.get (); |
| 448 | break; |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | if (pattern != NULL) |
| 453 | { |
| 454 | if (debug_auto_load) |
| 455 | fprintf_unfiltered (gdb_stdlog, _("auto-load: File \"%s\" matches " |
| 456 | "directory \"%s\".\n"), |
| 457 | filename, pattern); |
| 458 | return 1; |
| 459 | } |
| 460 | |
| 461 | return 0; |
| 462 | } |
| 463 | |
| 464 | /* Return 1 if FILENAME is located in one of the directories of |
| 465 | AUTO_LOAD_SAFE_PATH. Otherwise call warning and return 0. FILENAME does |
| 466 | not have to be an absolute path. |
| 467 | |
| 468 | Existence of FILENAME is not checked. Function will still give a warning |
| 469 | even if the caller would quietly skip non-existing file in unsafe |
| 470 | directory. */ |
| 471 | |
| 472 | int |
| 473 | file_is_auto_load_safe (const char *filename, const char *debug_fmt, ...) |
| 474 | { |
| 475 | gdb::unique_xmalloc_ptr<char> filename_real; |
| 476 | static int advice_printed = 0; |
| 477 | |
| 478 | if (debug_auto_load) |
| 479 | { |
| 480 | va_list debug_args; |
| 481 | |
| 482 | va_start (debug_args, debug_fmt); |
| 483 | vfprintf_unfiltered (gdb_stdlog, debug_fmt, debug_args); |
| 484 | va_end (debug_args); |
| 485 | } |
| 486 | |
| 487 | if (filename_is_in_auto_load_safe_path_vec (filename, &filename_real)) |
| 488 | return 1; |
| 489 | |
| 490 | auto_load_safe_path_vec_update (); |
| 491 | if (filename_is_in_auto_load_safe_path_vec (filename, &filename_real)) |
| 492 | return 1; |
| 493 | |
| 494 | warning (_("File \"%s\" auto-loading has been declined by your " |
| 495 | "`auto-load safe-path' set to \"%s\"."), |
| 496 | filename_real.get (), auto_load_safe_path); |
| 497 | |
| 498 | if (!advice_printed) |
| 499 | { |
| 500 | const char *homedir = getenv ("HOME"); |
| 501 | |
| 502 | if (homedir == NULL) |
| 503 | homedir = "$HOME"; |
| 504 | std::string homeinit = string_printf ("%s/%s", homedir, gdbinit); |
| 505 | |
| 506 | printf_filtered (_("\ |
| 507 | To enable execution of this file add\n\ |
| 508 | \tadd-auto-load-safe-path %s\n\ |
| 509 | line to your configuration file \"%s\".\n\ |
| 510 | To completely disable this security protection add\n\ |
| 511 | \tset auto-load safe-path /\n\ |
| 512 | line to your configuration file \"%s\".\n\ |
| 513 | For more information about this security protection see the\n\ |
| 514 | \"Auto-loading safe path\" section in the GDB manual. E.g., run from the shell:\n\ |
| 515 | \tinfo \"(gdb)Auto-loading safe path\"\n"), |
| 516 | filename_real.get (), |
| 517 | homeinit.c_str (), homeinit.c_str ()); |
| 518 | advice_printed = 1; |
| 519 | } |
| 520 | |
| 521 | return 0; |
| 522 | } |
| 523 | |
| 524 | /* For scripts specified in .debug_gdb_scripts, multiple objfiles may load |
| 525 | the same script. There's no point in loading the script multiple times, |
| 526 | and there can be a lot of objfiles and scripts, so we keep track of scripts |
| 527 | loaded this way. */ |
| 528 | |
| 529 | struct auto_load_pspace_info |
| 530 | { |
| 531 | /* For each program space we keep track of loaded scripts, both when |
| 532 | specified as file names and as scripts to be executed directly. */ |
| 533 | struct htab *loaded_script_files; |
| 534 | struct htab *loaded_script_texts; |
| 535 | |
| 536 | /* Non-zero if we've issued the warning about an auto-load script not being |
| 537 | supported. We only want to issue this warning once. */ |
| 538 | int unsupported_script_warning_printed; |
| 539 | |
| 540 | /* Non-zero if we've issued the warning about an auto-load script not being |
| 541 | found. We only want to issue this warning once. */ |
| 542 | int script_not_found_warning_printed; |
| 543 | }; |
| 544 | |
| 545 | /* Objects of this type are stored in the loaded_script hash table. */ |
| 546 | |
| 547 | struct loaded_script |
| 548 | { |
| 549 | /* Name as provided by the objfile. */ |
| 550 | const char *name; |
| 551 | |
| 552 | /* Full path name or NULL if script wasn't found (or was otherwise |
| 553 | inaccessible), or NULL for loaded_script_texts. */ |
| 554 | const char *full_path; |
| 555 | |
| 556 | /* Non-zero if this script has been loaded. */ |
| 557 | int loaded; |
| 558 | |
| 559 | const struct extension_language_defn *language; |
| 560 | }; |
| 561 | |
| 562 | /* Per-program-space data key. */ |
| 563 | static const struct program_space_data *auto_load_pspace_data; |
| 564 | |
| 565 | static void |
| 566 | auto_load_pspace_data_cleanup (struct program_space *pspace, void *arg) |
| 567 | { |
| 568 | struct auto_load_pspace_info *info = (struct auto_load_pspace_info *) arg; |
| 569 | |
| 570 | if (info->loaded_script_files) |
| 571 | htab_delete (info->loaded_script_files); |
| 572 | if (info->loaded_script_texts) |
| 573 | htab_delete (info->loaded_script_texts); |
| 574 | xfree (info); |
| 575 | } |
| 576 | |
| 577 | /* Get the current autoload data. If none is found yet, add it now. This |
| 578 | function always returns a valid object. */ |
| 579 | |
| 580 | static struct auto_load_pspace_info * |
| 581 | get_auto_load_pspace_data (struct program_space *pspace) |
| 582 | { |
| 583 | struct auto_load_pspace_info *info; |
| 584 | |
| 585 | info = ((struct auto_load_pspace_info *) |
| 586 | program_space_data (pspace, auto_load_pspace_data)); |
| 587 | if (info == NULL) |
| 588 | { |
| 589 | info = XCNEW (struct auto_load_pspace_info); |
| 590 | set_program_space_data (pspace, auto_load_pspace_data, info); |
| 591 | } |
| 592 | |
| 593 | return info; |
| 594 | } |
| 595 | |
| 596 | /* Hash function for the loaded script hash. */ |
| 597 | |
| 598 | static hashval_t |
| 599 | hash_loaded_script_entry (const void *data) |
| 600 | { |
| 601 | const struct loaded_script *e = (const struct loaded_script *) data; |
| 602 | |
| 603 | return htab_hash_string (e->name) ^ htab_hash_pointer (e->language); |
| 604 | } |
| 605 | |
| 606 | /* Equality function for the loaded script hash. */ |
| 607 | |
| 608 | static int |
| 609 | eq_loaded_script_entry (const void *a, const void *b) |
| 610 | { |
| 611 | const struct loaded_script *ea = (const struct loaded_script *) a; |
| 612 | const struct loaded_script *eb = (const struct loaded_script *) b; |
| 613 | |
| 614 | return strcmp (ea->name, eb->name) == 0 && ea->language == eb->language; |
| 615 | } |
| 616 | |
| 617 | /* Initialize the table to track loaded scripts. |
| 618 | Each entry is hashed by the full path name. */ |
| 619 | |
| 620 | static void |
| 621 | init_loaded_scripts_info (struct auto_load_pspace_info *pspace_info) |
| 622 | { |
| 623 | /* Choose 31 as the starting size of the hash table, somewhat arbitrarily. |
| 624 | Space for each entry is obtained with one malloc so we can free them |
| 625 | easily. */ |
| 626 | |
| 627 | pspace_info->loaded_script_files = htab_create (31, |
| 628 | hash_loaded_script_entry, |
| 629 | eq_loaded_script_entry, |
| 630 | xfree); |
| 631 | pspace_info->loaded_script_texts = htab_create (31, |
| 632 | hash_loaded_script_entry, |
| 633 | eq_loaded_script_entry, |
| 634 | xfree); |
| 635 | |
| 636 | pspace_info->unsupported_script_warning_printed = FALSE; |
| 637 | pspace_info->script_not_found_warning_printed = FALSE; |
| 638 | } |
| 639 | |
| 640 | /* Wrapper on get_auto_load_pspace_data to also allocate the hash table |
| 641 | for loading scripts. */ |
| 642 | |
| 643 | struct auto_load_pspace_info * |
| 644 | get_auto_load_pspace_data_for_loading (struct program_space *pspace) |
| 645 | { |
| 646 | struct auto_load_pspace_info *info; |
| 647 | |
| 648 | info = get_auto_load_pspace_data (pspace); |
| 649 | if (info->loaded_script_files == NULL) |
| 650 | init_loaded_scripts_info (info); |
| 651 | |
| 652 | return info; |
| 653 | } |
| 654 | |
| 655 | /* Add script file NAME in LANGUAGE to hash table of PSPACE_INFO. |
| 656 | LOADED 1 if the script has been (is going to) be loaded, 0 otherwise |
| 657 | (such as if it has not been found). |
| 658 | FULL_PATH is NULL if the script wasn't found. |
| 659 | The result is true if the script was already in the hash table. */ |
| 660 | |
| 661 | static int |
| 662 | maybe_add_script_file (struct auto_load_pspace_info *pspace_info, int loaded, |
| 663 | const char *name, const char *full_path, |
| 664 | const struct extension_language_defn *language) |
| 665 | { |
| 666 | struct htab *htab = pspace_info->loaded_script_files; |
| 667 | struct loaded_script **slot, entry; |
| 668 | int in_hash_table; |
| 669 | |
| 670 | entry.name = name; |
| 671 | entry.language = language; |
| 672 | slot = (struct loaded_script **) htab_find_slot (htab, &entry, INSERT); |
| 673 | in_hash_table = *slot != NULL; |
| 674 | |
| 675 | /* If this script is not in the hash table, add it. */ |
| 676 | |
| 677 | if (!in_hash_table) |
| 678 | { |
| 679 | char *p; |
| 680 | |
| 681 | /* Allocate all space in one chunk so it's easier to free. */ |
| 682 | *slot = ((struct loaded_script *) |
| 683 | xmalloc (sizeof (**slot) |
| 684 | + strlen (name) + 1 |
| 685 | + (full_path != NULL ? (strlen (full_path) + 1) : 0))); |
| 686 | p = ((char*) *slot) + sizeof (**slot); |
| 687 | strcpy (p, name); |
| 688 | (*slot)->name = p; |
| 689 | if (full_path != NULL) |
| 690 | { |
| 691 | p += strlen (p) + 1; |
| 692 | strcpy (p, full_path); |
| 693 | (*slot)->full_path = p; |
| 694 | } |
| 695 | else |
| 696 | (*slot)->full_path = NULL; |
| 697 | (*slot)->loaded = loaded; |
| 698 | (*slot)->language = language; |
| 699 | } |
| 700 | |
| 701 | return in_hash_table; |
| 702 | } |
| 703 | |
| 704 | /* Add script contents NAME in LANGUAGE to hash table of PSPACE_INFO. |
| 705 | LOADED 1 if the script has been (is going to) be loaded, 0 otherwise |
| 706 | (such as if it has not been found). |
| 707 | The result is true if the script was already in the hash table. */ |
| 708 | |
| 709 | static int |
| 710 | maybe_add_script_text (struct auto_load_pspace_info *pspace_info, |
| 711 | int loaded, const char *name, |
| 712 | const struct extension_language_defn *language) |
| 713 | { |
| 714 | struct htab *htab = pspace_info->loaded_script_texts; |
| 715 | struct loaded_script **slot, entry; |
| 716 | int in_hash_table; |
| 717 | |
| 718 | entry.name = name; |
| 719 | entry.language = language; |
| 720 | slot = (struct loaded_script **) htab_find_slot (htab, &entry, INSERT); |
| 721 | in_hash_table = *slot != NULL; |
| 722 | |
| 723 | /* If this script is not in the hash table, add it. */ |
| 724 | |
| 725 | if (!in_hash_table) |
| 726 | { |
| 727 | char *p; |
| 728 | |
| 729 | /* Allocate all space in one chunk so it's easier to free. */ |
| 730 | *slot = ((struct loaded_script *) |
| 731 | xmalloc (sizeof (**slot) + strlen (name) + 1)); |
| 732 | p = ((char*) *slot) + sizeof (**slot); |
| 733 | strcpy (p, name); |
| 734 | (*slot)->name = p; |
| 735 | (*slot)->full_path = NULL; |
| 736 | (*slot)->loaded = loaded; |
| 737 | (*slot)->language = language; |
| 738 | } |
| 739 | |
| 740 | return in_hash_table; |
| 741 | } |
| 742 | |
| 743 | /* Clear the table of loaded section scripts. */ |
| 744 | |
| 745 | static void |
| 746 | clear_section_scripts (void) |
| 747 | { |
| 748 | struct program_space *pspace = current_program_space; |
| 749 | struct auto_load_pspace_info *info; |
| 750 | |
| 751 | info = ((struct auto_load_pspace_info *) |
| 752 | program_space_data (pspace, auto_load_pspace_data)); |
| 753 | if (info != NULL && info->loaded_script_files != NULL) |
| 754 | { |
| 755 | htab_delete (info->loaded_script_files); |
| 756 | htab_delete (info->loaded_script_texts); |
| 757 | info->loaded_script_files = NULL; |
| 758 | info->loaded_script_texts = NULL; |
| 759 | info->unsupported_script_warning_printed = FALSE; |
| 760 | info->script_not_found_warning_printed = FALSE; |
| 761 | } |
| 762 | } |
| 763 | |
| 764 | /* Look for the auto-load script in LANGUAGE associated with OBJFILE where |
| 765 | OBJFILE's gdb_realpath is REALNAME and load it. Return 1 if we found any |
| 766 | matching script, return 0 otherwise. */ |
| 767 | |
| 768 | static int |
| 769 | auto_load_objfile_script_1 (struct objfile *objfile, const char *realname, |
| 770 | const struct extension_language_defn *language) |
| 771 | { |
| 772 | const char *debugfile; |
| 773 | int retval; |
| 774 | const char *suffix = ext_lang_auto_load_suffix (language); |
| 775 | |
| 776 | std::string filename = std::string (realname) + suffix; |
| 777 | |
| 778 | gdb_file_up input = gdb_fopen_cloexec (filename.c_str (), "r"); |
| 779 | debugfile = filename.c_str (); |
| 780 | if (debug_auto_load) |
| 781 | fprintf_unfiltered (gdb_stdlog, _("auto-load: Attempted file \"%s\" %s.\n"), |
| 782 | debugfile, input ? _("exists") : _("does not exist")); |
| 783 | |
| 784 | std::string debugfile_holder; |
| 785 | if (!input) |
| 786 | { |
| 787 | /* Also try the same file in a subdirectory of gdb's data |
| 788 | directory. */ |
| 789 | |
| 790 | std::vector<gdb::unique_xmalloc_ptr<char>> vec |
| 791 | = auto_load_expand_dir_vars (auto_load_dir); |
| 792 | |
| 793 | if (debug_auto_load) |
| 794 | fprintf_unfiltered (gdb_stdlog, _("auto-load: Searching 'set auto-load " |
| 795 | "scripts-directory' path \"%s\".\n"), |
| 796 | auto_load_dir); |
| 797 | |
| 798 | for (const gdb::unique_xmalloc_ptr<char> &dir : vec) |
| 799 | { |
| 800 | /* FILENAME is absolute, so we don't need a "/" here. */ |
| 801 | debugfile_holder = dir.get () + filename; |
| 802 | debugfile = debugfile_holder.c_str (); |
| 803 | |
| 804 | input = gdb_fopen_cloexec (debugfile, "r"); |
| 805 | if (debug_auto_load) |
| 806 | fprintf_unfiltered (gdb_stdlog, _("auto-load: Attempted file " |
| 807 | "\"%s\" %s.\n"), |
| 808 | debugfile, |
| 809 | input ? _("exists") : _("does not exist")); |
| 810 | if (input != NULL) |
| 811 | break; |
| 812 | } |
| 813 | } |
| 814 | |
| 815 | if (input) |
| 816 | { |
| 817 | int is_safe; |
| 818 | struct auto_load_pspace_info *pspace_info; |
| 819 | |
| 820 | is_safe |
| 821 | = file_is_auto_load_safe (debugfile, |
| 822 | _("auto-load: Loading %s script \"%s\"" |
| 823 | " by extension for objfile \"%s\".\n"), |
| 824 | ext_lang_name (language), |
| 825 | debugfile, objfile_name (objfile)); |
| 826 | |
| 827 | /* Add this script to the hash table too so |
| 828 | "info auto-load ${lang}-scripts" can print it. */ |
| 829 | pspace_info |
| 830 | = get_auto_load_pspace_data_for_loading (current_program_space); |
| 831 | maybe_add_script_file (pspace_info, is_safe, debugfile, debugfile, |
| 832 | language); |
| 833 | |
| 834 | /* To preserve existing behaviour we don't check for whether the |
| 835 | script was already in the table, and always load it. |
| 836 | It's highly unlikely that we'd ever load it twice, |
| 837 | and these scripts are required to be idempotent under multiple |
| 838 | loads anyway. */ |
| 839 | if (is_safe) |
| 840 | { |
| 841 | objfile_script_sourcer_func *sourcer |
| 842 | = ext_lang_objfile_script_sourcer (language); |
| 843 | |
| 844 | /* We shouldn't get here if support for the language isn't |
| 845 | compiled in. And the extension language is required to implement |
| 846 | this function. */ |
| 847 | gdb_assert (sourcer != NULL); |
| 848 | sourcer (language, objfile, input.get (), debugfile); |
| 849 | } |
| 850 | |
| 851 | retval = 1; |
| 852 | } |
| 853 | else |
| 854 | retval = 0; |
| 855 | |
| 856 | return retval; |
| 857 | } |
| 858 | |
| 859 | /* Look for the auto-load script in LANGUAGE associated with OBJFILE and load |
| 860 | it. */ |
| 861 | |
| 862 | void |
| 863 | auto_load_objfile_script (struct objfile *objfile, |
| 864 | const struct extension_language_defn *language) |
| 865 | { |
| 866 | gdb::unique_xmalloc_ptr<char> realname |
| 867 | = gdb_realpath (objfile_name (objfile)); |
| 868 | |
| 869 | if (!auto_load_objfile_script_1 (objfile, realname.get (), language)) |
| 870 | { |
| 871 | /* For Windows/DOS .exe executables, strip the .exe suffix, so that |
| 872 | FOO-gdb.gdb could be used for FOO.exe, and try again. */ |
| 873 | |
| 874 | size_t len = strlen (realname.get ()); |
| 875 | const size_t lexe = sizeof (".exe") - 1; |
| 876 | |
| 877 | if (len > lexe && strcasecmp (realname.get () + len - lexe, ".exe") == 0) |
| 878 | { |
| 879 | len -= lexe; |
| 880 | realname.get ()[len] = '\0'; |
| 881 | if (debug_auto_load) |
| 882 | fprintf_unfiltered (gdb_stdlog, _("auto-load: Stripped .exe suffix, " |
| 883 | "retrying with \"%s\".\n"), |
| 884 | realname.get ()); |
| 885 | auto_load_objfile_script_1 (objfile, realname.get (), language); |
| 886 | } |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | /* Subroutine of source_section_scripts to simplify it. |
| 891 | Load FILE as a script in extension language LANGUAGE. |
| 892 | The script is from section SECTION_NAME in OBJFILE at offset OFFSET. */ |
| 893 | |
| 894 | static void |
| 895 | source_script_file (struct auto_load_pspace_info *pspace_info, |
| 896 | struct objfile *objfile, |
| 897 | const struct extension_language_defn *language, |
| 898 | const char *section_name, unsigned int offset, |
| 899 | const char *file) |
| 900 | { |
| 901 | int in_hash_table; |
| 902 | objfile_script_sourcer_func *sourcer; |
| 903 | |
| 904 | /* Skip this script if support is not compiled in. */ |
| 905 | sourcer = ext_lang_objfile_script_sourcer (language); |
| 906 | if (sourcer == NULL) |
| 907 | { |
| 908 | /* We don't throw an error, the program is still debuggable. */ |
| 909 | maybe_print_unsupported_script_warning (pspace_info, objfile, language, |
| 910 | section_name, offset); |
| 911 | /* We *could* still try to open it, but there's no point. */ |
| 912 | maybe_add_script_file (pspace_info, 0, file, NULL, language); |
| 913 | return; |
| 914 | } |
| 915 | |
| 916 | /* Skip this script if auto-loading it has been disabled. */ |
| 917 | if (!ext_lang_auto_load_enabled (language)) |
| 918 | { |
| 919 | /* No message is printed, just skip it. */ |
| 920 | return; |
| 921 | } |
| 922 | |
| 923 | gdb::optional<open_script> opened = find_and_open_script (file, |
| 924 | 1 /*search_path*/); |
| 925 | |
| 926 | if (opened) |
| 927 | { |
| 928 | if (!file_is_auto_load_safe (opened->full_path.get (), |
| 929 | _("auto-load: Loading %s script " |
| 930 | "\"%s\" from section \"%s\" of " |
| 931 | "objfile \"%s\".\n"), |
| 932 | ext_lang_name (language), |
| 933 | opened->full_path.get (), |
| 934 | section_name, objfile_name (objfile))) |
| 935 | opened.reset (); |
| 936 | } |
| 937 | else |
| 938 | { |
| 939 | /* If one script isn't found it's not uncommon for more to not be |
| 940 | found either. We don't want to print a message for each script, |
| 941 | too much noise. Instead, we print the warning once and tell the |
| 942 | user how to find the list of scripts that weren't loaded. |
| 943 | We don't throw an error, the program is still debuggable. |
| 944 | |
| 945 | IWBN if complaints.c were more general-purpose. */ |
| 946 | |
| 947 | maybe_print_script_not_found_warning (pspace_info, objfile, language, |
| 948 | section_name, offset); |
| 949 | } |
| 950 | |
| 951 | in_hash_table = maybe_add_script_file (pspace_info, bool (opened), file, |
| 952 | (opened |
| 953 | ? opened->full_path.get () |
| 954 | : NULL), |
| 955 | language); |
| 956 | |
| 957 | /* If this file is not currently loaded, load it. */ |
| 958 | if (opened && !in_hash_table) |
| 959 | sourcer (language, objfile, opened->stream.get (), |
| 960 | opened->full_path.get ()); |
| 961 | } |
| 962 | |
| 963 | /* Subroutine of source_section_scripts to simplify it. |
| 964 | Execute SCRIPT as a script in extension language LANG. |
| 965 | The script is from section SECTION_NAME in OBJFILE at offset OFFSET. */ |
| 966 | |
| 967 | static void |
| 968 | execute_script_contents (struct auto_load_pspace_info *pspace_info, |
| 969 | struct objfile *objfile, |
| 970 | const struct extension_language_defn *language, |
| 971 | const char *section_name, unsigned int offset, |
| 972 | const char *script) |
| 973 | { |
| 974 | objfile_script_executor_func *executor; |
| 975 | const char *newline, *script_text; |
| 976 | const char *name; |
| 977 | int is_safe, in_hash_table; |
| 978 | |
| 979 | /* The first line of the script is the name of the script. |
| 980 | It must not contain any kind of space character. */ |
| 981 | name = NULL; |
| 982 | newline = strchr (script, '\n'); |
| 983 | std::string name_holder; |
| 984 | if (newline != NULL) |
| 985 | { |
| 986 | const char *buf, *p; |
| 987 | |
| 988 | /* Put the name in a buffer and validate it. */ |
| 989 | name_holder = std::string (script, newline - script); |
| 990 | buf = name_holder.c_str (); |
| 991 | for (p = buf; *p != '\0'; ++p) |
| 992 | { |
| 993 | if (isspace (*p)) |
| 994 | break; |
| 995 | } |
| 996 | /* We don't allow nameless scripts, they're not helpful to the user. */ |
| 997 | if (p != buf && *p == '\0') |
| 998 | name = buf; |
| 999 | } |
| 1000 | if (name == NULL) |
| 1001 | { |
| 1002 | /* We don't throw an error, the program is still debuggable. */ |
| 1003 | warning (_("\ |
| 1004 | Missing/bad script name in entry at offset %u in section %s\n\ |
| 1005 | of file %s."), |
| 1006 | offset, section_name, objfile_name (objfile)); |
| 1007 | return; |
| 1008 | } |
| 1009 | script_text = newline + 1; |
| 1010 | |
| 1011 | /* Skip this script if support is not compiled in. */ |
| 1012 | executor = ext_lang_objfile_script_executor (language); |
| 1013 | if (executor == NULL) |
| 1014 | { |
| 1015 | /* We don't throw an error, the program is still debuggable. */ |
| 1016 | maybe_print_unsupported_script_warning (pspace_info, objfile, language, |
| 1017 | section_name, offset); |
| 1018 | maybe_add_script_text (pspace_info, 0, name, language); |
| 1019 | return; |
| 1020 | } |
| 1021 | |
| 1022 | /* Skip this script if auto-loading it has been disabled. */ |
| 1023 | if (!ext_lang_auto_load_enabled (language)) |
| 1024 | { |
| 1025 | /* No message is printed, just skip it. */ |
| 1026 | return; |
| 1027 | } |
| 1028 | |
| 1029 | is_safe = file_is_auto_load_safe (objfile_name (objfile), |
| 1030 | _("auto-load: Loading %s script " |
| 1031 | "\"%s\" from section \"%s\" of " |
| 1032 | "objfile \"%s\".\n"), |
| 1033 | ext_lang_name (language), name, |
| 1034 | section_name, objfile_name (objfile)); |
| 1035 | |
| 1036 | in_hash_table = maybe_add_script_text (pspace_info, is_safe, name, language); |
| 1037 | |
| 1038 | /* If this file is not currently loaded, load it. */ |
| 1039 | if (is_safe && !in_hash_table) |
| 1040 | executor (language, objfile, name, script_text); |
| 1041 | } |
| 1042 | |
| 1043 | /* Load scripts specified in OBJFILE. |
| 1044 | START,END delimit a buffer containing a list of nul-terminated |
| 1045 | file names. |
| 1046 | SECTION_NAME is used in error messages. |
| 1047 | |
| 1048 | Scripts specified as file names are found per normal "source -s" command |
| 1049 | processing. First the script is looked for in $cwd. If not found there |
| 1050 | the source search path is used. |
| 1051 | |
| 1052 | The section contains a list of path names of script files to load or |
| 1053 | actual script contents. Each entry is nul-terminated. */ |
| 1054 | |
| 1055 | static void |
| 1056 | source_section_scripts (struct objfile *objfile, const char *section_name, |
| 1057 | const char *start, const char *end) |
| 1058 | { |
| 1059 | const char *p; |
| 1060 | struct auto_load_pspace_info *pspace_info; |
| 1061 | |
| 1062 | pspace_info = get_auto_load_pspace_data_for_loading (current_program_space); |
| 1063 | |
| 1064 | for (p = start; p < end; ++p) |
| 1065 | { |
| 1066 | const char *entry; |
| 1067 | const struct extension_language_defn *language; |
| 1068 | unsigned int offset = p - start; |
| 1069 | int code = *p; |
| 1070 | |
| 1071 | switch (code) |
| 1072 | { |
| 1073 | case SECTION_SCRIPT_ID_PYTHON_FILE: |
| 1074 | case SECTION_SCRIPT_ID_PYTHON_TEXT: |
| 1075 | language = get_ext_lang_defn (EXT_LANG_PYTHON); |
| 1076 | break; |
| 1077 | case SECTION_SCRIPT_ID_SCHEME_FILE: |
| 1078 | case SECTION_SCRIPT_ID_SCHEME_TEXT: |
| 1079 | language = get_ext_lang_defn (EXT_LANG_GUILE); |
| 1080 | break; |
| 1081 | default: |
| 1082 | warning (_("Invalid entry in %s section"), section_name); |
| 1083 | /* We could try various heuristics to find the next valid entry, |
| 1084 | but it's safer to just punt. */ |
| 1085 | return; |
| 1086 | } |
| 1087 | entry = ++p; |
| 1088 | |
| 1089 | while (p < end && *p != '\0') |
| 1090 | ++p; |
| 1091 | if (p == end) |
| 1092 | { |
| 1093 | warning (_("Non-nul-terminated entry in %s at offset %u"), |
| 1094 | section_name, offset); |
| 1095 | /* Don't load/execute it. */ |
| 1096 | break; |
| 1097 | } |
| 1098 | |
| 1099 | switch (code) |
| 1100 | { |
| 1101 | case SECTION_SCRIPT_ID_PYTHON_FILE: |
| 1102 | case SECTION_SCRIPT_ID_SCHEME_FILE: |
| 1103 | if (p == entry) |
| 1104 | { |
| 1105 | warning (_("Empty entry in %s at offset %u"), |
| 1106 | section_name, offset); |
| 1107 | continue; |
| 1108 | } |
| 1109 | source_script_file (pspace_info, objfile, language, |
| 1110 | section_name, offset, entry); |
| 1111 | break; |
| 1112 | case SECTION_SCRIPT_ID_PYTHON_TEXT: |
| 1113 | case SECTION_SCRIPT_ID_SCHEME_TEXT: |
| 1114 | execute_script_contents (pspace_info, objfile, language, |
| 1115 | section_name, offset, entry); |
| 1116 | break; |
| 1117 | } |
| 1118 | } |
| 1119 | } |
| 1120 | |
| 1121 | /* Load scripts specified in section SECTION_NAME of OBJFILE. */ |
| 1122 | |
| 1123 | static void |
| 1124 | auto_load_section_scripts (struct objfile *objfile, const char *section_name) |
| 1125 | { |
| 1126 | bfd *abfd = objfile->obfd; |
| 1127 | asection *scripts_sect; |
| 1128 | bfd_byte *data = NULL; |
| 1129 | |
| 1130 | scripts_sect = bfd_get_section_by_name (abfd, section_name); |
| 1131 | if (scripts_sect == NULL |
| 1132 | || (bfd_get_section_flags (abfd, scripts_sect) & SEC_HAS_CONTENTS) == 0) |
| 1133 | return; |
| 1134 | |
| 1135 | if (!bfd_get_full_section_contents (abfd, scripts_sect, &data)) |
| 1136 | warning (_("Couldn't read %s section of %s"), |
| 1137 | section_name, bfd_get_filename (abfd)); |
| 1138 | else |
| 1139 | { |
| 1140 | gdb::unique_xmalloc_ptr<bfd_byte> data_holder (data); |
| 1141 | |
| 1142 | char *p = (char *) data; |
| 1143 | source_section_scripts (objfile, section_name, p, |
| 1144 | p + bfd_get_section_size (scripts_sect)); |
| 1145 | } |
| 1146 | } |
| 1147 | |
| 1148 | /* Load any auto-loaded scripts for OBJFILE. */ |
| 1149 | |
| 1150 | void |
| 1151 | load_auto_scripts_for_objfile (struct objfile *objfile) |
| 1152 | { |
| 1153 | /* Return immediately if auto-loading has been globally disabled. |
| 1154 | This is to handle sequencing of operations during gdb startup. |
| 1155 | Also return immediately if OBJFILE was not created from a file |
| 1156 | on the local filesystem. */ |
| 1157 | if (!global_auto_load |
| 1158 | || (objfile->flags & OBJF_NOT_FILENAME) != 0 |
| 1159 | || is_target_filename (objfile->original_name)) |
| 1160 | return; |
| 1161 | |
| 1162 | /* Load any extension language scripts for this objfile. |
| 1163 | E.g., foo-gdb.gdb, foo-gdb.py. */ |
| 1164 | auto_load_ext_lang_scripts_for_objfile (objfile); |
| 1165 | |
| 1166 | /* Load any scripts mentioned in AUTO_SECTION_NAME (.debug_gdb_scripts). */ |
| 1167 | auto_load_section_scripts (objfile, AUTO_SECTION_NAME); |
| 1168 | } |
| 1169 | |
| 1170 | /* This is a new_objfile observer callback to auto-load scripts. |
| 1171 | |
| 1172 | Two flavors of auto-loaded scripts are supported. |
| 1173 | 1) based on the path to the objfile |
| 1174 | 2) from .debug_gdb_scripts section */ |
| 1175 | |
| 1176 | static void |
| 1177 | auto_load_new_objfile (struct objfile *objfile) |
| 1178 | { |
| 1179 | if (!objfile) |
| 1180 | { |
| 1181 | /* OBJFILE is NULL when loading a new "main" symbol-file. */ |
| 1182 | clear_section_scripts (); |
| 1183 | return; |
| 1184 | } |
| 1185 | |
| 1186 | load_auto_scripts_for_objfile (objfile); |
| 1187 | } |
| 1188 | |
| 1189 | /* Collect scripts to be printed in a vec. */ |
| 1190 | |
| 1191 | struct collect_matching_scripts_data |
| 1192 | { |
| 1193 | collect_matching_scripts_data (std::vector<loaded_script *> *scripts_p_, |
| 1194 | const extension_language_defn *language_) |
| 1195 | : scripts_p (scripts_p_), language (language_) |
| 1196 | {} |
| 1197 | |
| 1198 | std::vector<loaded_script *> *scripts_p; |
| 1199 | const struct extension_language_defn *language; |
| 1200 | }; |
| 1201 | |
| 1202 | /* Traversal function for htab_traverse. |
| 1203 | Collect the entry if it matches the regexp. */ |
| 1204 | |
| 1205 | static int |
| 1206 | collect_matching_scripts (void **slot, void *info) |
| 1207 | { |
| 1208 | struct loaded_script *script = (struct loaded_script *) *slot; |
| 1209 | struct collect_matching_scripts_data *data |
| 1210 | = (struct collect_matching_scripts_data *) info; |
| 1211 | |
| 1212 | if (script->language == data->language && re_exec (script->name)) |
| 1213 | data->scripts_p->push_back (script); |
| 1214 | |
| 1215 | return 1; |
| 1216 | } |
| 1217 | |
| 1218 | /* Print SCRIPT. */ |
| 1219 | |
| 1220 | static void |
| 1221 | print_script (struct loaded_script *script) |
| 1222 | { |
| 1223 | struct ui_out *uiout = current_uiout; |
| 1224 | |
| 1225 | ui_out_emit_tuple tuple_emitter (uiout, NULL); |
| 1226 | |
| 1227 | uiout->field_string ("loaded", script->loaded ? "Yes" : "No"); |
| 1228 | uiout->field_string ("script", script->name); |
| 1229 | uiout->text ("\n"); |
| 1230 | |
| 1231 | /* If the name isn't the full path, print it too. */ |
| 1232 | if (script->full_path != NULL |
| 1233 | && strcmp (script->name, script->full_path) != 0) |
| 1234 | { |
| 1235 | uiout->text ("\tfull name: "); |
| 1236 | uiout->field_string ("full_path", script->full_path); |
| 1237 | uiout->text ("\n"); |
| 1238 | } |
| 1239 | } |
| 1240 | |
| 1241 | /* Helper for info_auto_load_scripts to sort the scripts by name. */ |
| 1242 | |
| 1243 | static bool |
| 1244 | sort_scripts_by_name (loaded_script *a, loaded_script *b) |
| 1245 | { |
| 1246 | return FILENAME_CMP (a->name, b->name) < 0; |
| 1247 | } |
| 1248 | |
| 1249 | /* Special internal GDB value of auto_load_info_scripts's PATTERN identify |
| 1250 | the "info auto-load XXX" command has been executed through the general |
| 1251 | "info auto-load" invocation. Extra newline will be printed if needed. */ |
| 1252 | char auto_load_info_scripts_pattern_nl[] = ""; |
| 1253 | |
| 1254 | /* Subroutine of auto_load_info_scripts to simplify it. |
| 1255 | Print SCRIPTS. */ |
| 1256 | |
| 1257 | static void |
| 1258 | print_scripts (const std::vector<loaded_script *> &scripts) |
| 1259 | { |
| 1260 | for (loaded_script *script : scripts) |
| 1261 | print_script (script); |
| 1262 | } |
| 1263 | |
| 1264 | /* Implementation for "info auto-load gdb-scripts" |
| 1265 | (and "info auto-load python-scripts"). List scripts in LANGUAGE matching |
| 1266 | PATTERN. FROM_TTY is the usual GDB boolean for user interactivity. */ |
| 1267 | |
| 1268 | void |
| 1269 | auto_load_info_scripts (const char *pattern, int from_tty, |
| 1270 | const struct extension_language_defn *language) |
| 1271 | { |
| 1272 | struct ui_out *uiout = current_uiout; |
| 1273 | struct auto_load_pspace_info *pspace_info; |
| 1274 | |
| 1275 | dont_repeat (); |
| 1276 | |
| 1277 | pspace_info = get_auto_load_pspace_data (current_program_space); |
| 1278 | |
| 1279 | if (pattern && *pattern) |
| 1280 | { |
| 1281 | char *re_err = re_comp (pattern); |
| 1282 | |
| 1283 | if (re_err) |
| 1284 | error (_("Invalid regexp: %s"), re_err); |
| 1285 | } |
| 1286 | else |
| 1287 | { |
| 1288 | re_comp (""); |
| 1289 | } |
| 1290 | |
| 1291 | /* We need to know the number of rows before we build the table. |
| 1292 | Plus we want to sort the scripts by name. |
| 1293 | So first traverse the hash table collecting the matching scripts. */ |
| 1294 | |
| 1295 | std::vector<loaded_script *> script_files, script_texts; |
| 1296 | |
| 1297 | if (pspace_info != NULL && pspace_info->loaded_script_files != NULL) |
| 1298 | { |
| 1299 | collect_matching_scripts_data data (&script_files, language); |
| 1300 | |
| 1301 | /* Pass a pointer to scripts as VEC_safe_push can realloc space. */ |
| 1302 | htab_traverse_noresize (pspace_info->loaded_script_files, |
| 1303 | collect_matching_scripts, &data); |
| 1304 | |
| 1305 | std::sort (script_files.begin (), script_files.end (), |
| 1306 | sort_scripts_by_name); |
| 1307 | } |
| 1308 | |
| 1309 | if (pspace_info != NULL && pspace_info->loaded_script_texts != NULL) |
| 1310 | { |
| 1311 | collect_matching_scripts_data data (&script_texts, language); |
| 1312 | |
| 1313 | /* Pass a pointer to scripts as VEC_safe_push can realloc space. */ |
| 1314 | htab_traverse_noresize (pspace_info->loaded_script_texts, |
| 1315 | collect_matching_scripts, &data); |
| 1316 | |
| 1317 | std::sort (script_texts.begin (), script_texts.end (), |
| 1318 | sort_scripts_by_name); |
| 1319 | } |
| 1320 | |
| 1321 | int nr_scripts = script_files.size () + script_texts.size (); |
| 1322 | |
| 1323 | /* Table header shifted right by preceding "gdb-scripts: " would not match |
| 1324 | its columns. */ |
| 1325 | if (nr_scripts > 0 && pattern == auto_load_info_scripts_pattern_nl) |
| 1326 | uiout->text ("\n"); |
| 1327 | |
| 1328 | { |
| 1329 | ui_out_emit_table table_emitter (uiout, 2, nr_scripts, |
| 1330 | "AutoLoadedScriptsTable"); |
| 1331 | |
| 1332 | uiout->table_header (7, ui_left, "loaded", "Loaded"); |
| 1333 | uiout->table_header (70, ui_left, "script", "Script"); |
| 1334 | uiout->table_body (); |
| 1335 | |
| 1336 | print_scripts (script_files); |
| 1337 | print_scripts (script_texts); |
| 1338 | } |
| 1339 | |
| 1340 | if (nr_scripts == 0) |
| 1341 | { |
| 1342 | if (pattern && *pattern) |
| 1343 | uiout->message ("No auto-load scripts matching %s.\n", pattern); |
| 1344 | else |
| 1345 | uiout->message ("No auto-load scripts.\n"); |
| 1346 | } |
| 1347 | } |
| 1348 | |
| 1349 | /* Wrapper for "info auto-load gdb-scripts". */ |
| 1350 | |
| 1351 | static void |
| 1352 | info_auto_load_gdb_scripts (const char *pattern, int from_tty) |
| 1353 | { |
| 1354 | auto_load_info_scripts (pattern, from_tty, &extension_language_gdb); |
| 1355 | } |
| 1356 | |
| 1357 | /* Implement 'info auto-load local-gdbinit'. */ |
| 1358 | |
| 1359 | static void |
| 1360 | info_auto_load_local_gdbinit (const char *args, int from_tty) |
| 1361 | { |
| 1362 | if (auto_load_local_gdbinit_pathname == NULL) |
| 1363 | printf_filtered (_("Local .gdbinit file was not found.\n")); |
| 1364 | else if (auto_load_local_gdbinit_loaded) |
| 1365 | printf_filtered (_("Local .gdbinit file \"%s\" has been loaded.\n"), |
| 1366 | auto_load_local_gdbinit_pathname); |
| 1367 | else |
| 1368 | printf_filtered (_("Local .gdbinit file \"%s\" has not been loaded.\n"), |
| 1369 | auto_load_local_gdbinit_pathname); |
| 1370 | } |
| 1371 | |
| 1372 | /* Print an "unsupported script" warning if it has not already been printed. |
| 1373 | The script is in language LANGUAGE at offset OFFSET in section SECTION_NAME |
| 1374 | of OBJFILE. */ |
| 1375 | |
| 1376 | static void |
| 1377 | maybe_print_unsupported_script_warning |
| 1378 | (struct auto_load_pspace_info *pspace_info, |
| 1379 | struct objfile *objfile, const struct extension_language_defn *language, |
| 1380 | const char *section_name, unsigned offset) |
| 1381 | { |
| 1382 | if (!pspace_info->unsupported_script_warning_printed) |
| 1383 | { |
| 1384 | warning (_("\ |
| 1385 | Unsupported auto-load script at offset %u in section %s\n\ |
| 1386 | of file %s.\n\ |
| 1387 | Use `info auto-load %s-scripts [REGEXP]' to list them."), |
| 1388 | offset, section_name, objfile_name (objfile), |
| 1389 | ext_lang_name (language)); |
| 1390 | pspace_info->unsupported_script_warning_printed = 1; |
| 1391 | } |
| 1392 | } |
| 1393 | |
| 1394 | /* Return non-zero if SCRIPT_NOT_FOUND_WARNING_PRINTED of PSPACE_INFO was unset |
| 1395 | before calling this function. Always set SCRIPT_NOT_FOUND_WARNING_PRINTED |
| 1396 | of PSPACE_INFO. */ |
| 1397 | |
| 1398 | static void |
| 1399 | maybe_print_script_not_found_warning |
| 1400 | (struct auto_load_pspace_info *pspace_info, |
| 1401 | struct objfile *objfile, const struct extension_language_defn *language, |
| 1402 | const char *section_name, unsigned offset) |
| 1403 | { |
| 1404 | if (!pspace_info->script_not_found_warning_printed) |
| 1405 | { |
| 1406 | warning (_("\ |
| 1407 | Missing auto-load script at offset %u in section %s\n\ |
| 1408 | of file %s.\n\ |
| 1409 | Use `info auto-load %s-scripts [REGEXP]' to list them."), |
| 1410 | offset, section_name, objfile_name (objfile), |
| 1411 | ext_lang_name (language)); |
| 1412 | pspace_info->script_not_found_warning_printed = 1; |
| 1413 | } |
| 1414 | } |
| 1415 | |
| 1416 | /* The only valid "set auto-load" argument is off|0|no|disable. */ |
| 1417 | |
| 1418 | static void |
| 1419 | set_auto_load_cmd (const char *args, int from_tty) |
| 1420 | { |
| 1421 | struct cmd_list_element *list; |
| 1422 | size_t length; |
| 1423 | |
| 1424 | /* See parse_binary_operation in use by the sub-commands. */ |
| 1425 | |
| 1426 | length = args ? strlen (args) : 0; |
| 1427 | |
| 1428 | while (length > 0 && (args[length - 1] == ' ' || args[length - 1] == '\t')) |
| 1429 | length--; |
| 1430 | |
| 1431 | if (length == 0 || (strncmp (args, "off", length) != 0 |
| 1432 | && strncmp (args, "0", length) != 0 |
| 1433 | && strncmp (args, "no", length) != 0 |
| 1434 | && strncmp (args, "disable", length) != 0)) |
| 1435 | error (_("Valid is only global 'set auto-load no'; " |
| 1436 | "otherwise check the auto-load sub-commands.")); |
| 1437 | |
| 1438 | for (list = *auto_load_set_cmdlist_get (); list != NULL; list = list->next) |
| 1439 | if (list->var_type == var_boolean) |
| 1440 | { |
| 1441 | gdb_assert (list->type == set_cmd); |
| 1442 | do_set_command (args, from_tty, list); |
| 1443 | } |
| 1444 | } |
| 1445 | |
| 1446 | /* Initialize "set auto-load " commands prefix and return it. */ |
| 1447 | |
| 1448 | struct cmd_list_element ** |
| 1449 | auto_load_set_cmdlist_get (void) |
| 1450 | { |
| 1451 | static struct cmd_list_element *retval; |
| 1452 | |
| 1453 | if (retval == NULL) |
| 1454 | add_prefix_cmd ("auto-load", class_maintenance, set_auto_load_cmd, _("\ |
| 1455 | Auto-loading specific settings.\n\ |
| 1456 | Configure various auto-load-specific variables such as\n\ |
| 1457 | automatic loading of Python scripts."), |
| 1458 | &retval, "set auto-load ", |
| 1459 | 1/*allow-unknown*/, &setlist); |
| 1460 | |
| 1461 | return &retval; |
| 1462 | } |
| 1463 | |
| 1464 | /* Command "show auto-load" displays summary of all the current |
| 1465 | "show auto-load " settings. */ |
| 1466 | |
| 1467 | static void |
| 1468 | show_auto_load_cmd (const char *args, int from_tty) |
| 1469 | { |
| 1470 | cmd_show_list (*auto_load_show_cmdlist_get (), from_tty, ""); |
| 1471 | } |
| 1472 | |
| 1473 | /* Initialize "show auto-load " commands prefix and return it. */ |
| 1474 | |
| 1475 | struct cmd_list_element ** |
| 1476 | auto_load_show_cmdlist_get (void) |
| 1477 | { |
| 1478 | static struct cmd_list_element *retval; |
| 1479 | |
| 1480 | if (retval == NULL) |
| 1481 | add_prefix_cmd ("auto-load", class_maintenance, show_auto_load_cmd, _("\ |
| 1482 | Show auto-loading specific settings.\n\ |
| 1483 | Show configuration of various auto-load-specific variables such as\n\ |
| 1484 | automatic loading of Python scripts."), |
| 1485 | &retval, "show auto-load ", |
| 1486 | 0/*allow-unknown*/, &showlist); |
| 1487 | |
| 1488 | return &retval; |
| 1489 | } |
| 1490 | |
| 1491 | /* Command "info auto-load" displays whether the various auto-load files have |
| 1492 | been loaded. This is reimplementation of cmd_show_list which inserts |
| 1493 | newlines at proper places. */ |
| 1494 | |
| 1495 | static void |
| 1496 | info_auto_load_cmd (const char *args, int from_tty) |
| 1497 | { |
| 1498 | struct cmd_list_element *list; |
| 1499 | struct ui_out *uiout = current_uiout; |
| 1500 | |
| 1501 | ui_out_emit_tuple tuple_emitter (uiout, "infolist"); |
| 1502 | |
| 1503 | for (list = *auto_load_info_cmdlist_get (); list != NULL; list = list->next) |
| 1504 | { |
| 1505 | ui_out_emit_tuple option_emitter (uiout, "option"); |
| 1506 | |
| 1507 | gdb_assert (!list->prefixlist); |
| 1508 | gdb_assert (list->type == not_set_cmd); |
| 1509 | |
| 1510 | uiout->field_string ("name", list->name); |
| 1511 | uiout->text (": "); |
| 1512 | cmd_func (list, auto_load_info_scripts_pattern_nl, from_tty); |
| 1513 | } |
| 1514 | } |
| 1515 | |
| 1516 | /* Initialize "info auto-load " commands prefix and return it. */ |
| 1517 | |
| 1518 | struct cmd_list_element ** |
| 1519 | auto_load_info_cmdlist_get (void) |
| 1520 | { |
| 1521 | static struct cmd_list_element *retval; |
| 1522 | |
| 1523 | if (retval == NULL) |
| 1524 | add_prefix_cmd ("auto-load", class_info, info_auto_load_cmd, _("\ |
| 1525 | Print current status of auto-loaded files.\n\ |
| 1526 | Print whether various files like Python scripts or .gdbinit files have been\n\ |
| 1527 | found and/or loaded."), |
| 1528 | &retval, "info auto-load ", |
| 1529 | 0/*allow-unknown*/, &infolist); |
| 1530 | |
| 1531 | return &retval; |
| 1532 | } |
| 1533 | |
| 1534 | void |
| 1535 | _initialize_auto_load (void) |
| 1536 | { |
| 1537 | struct cmd_list_element *cmd; |
| 1538 | char *scripts_directory_help, *gdb_name_help, *python_name_help; |
| 1539 | char *guile_name_help; |
| 1540 | const char *suffix; |
| 1541 | |
| 1542 | auto_load_pspace_data |
| 1543 | = register_program_space_data_with_cleanup (NULL, |
| 1544 | auto_load_pspace_data_cleanup); |
| 1545 | |
| 1546 | gdb::observers::new_objfile.attach (auto_load_new_objfile); |
| 1547 | |
| 1548 | add_setshow_boolean_cmd ("gdb-scripts", class_support, |
| 1549 | &auto_load_gdb_scripts, _("\ |
| 1550 | Enable or disable auto-loading of canned sequences of commands scripts."), _("\ |
| 1551 | Show whether auto-loading of canned sequences of commands scripts is enabled."), |
| 1552 | _("\ |
| 1553 | If enabled, canned sequences of commands are loaded when the debugger reads\n\ |
| 1554 | an executable or shared library.\n\ |
| 1555 | This options has security implications for untrusted inferiors."), |
| 1556 | NULL, show_auto_load_gdb_scripts, |
| 1557 | auto_load_set_cmdlist_get (), |
| 1558 | auto_load_show_cmdlist_get ()); |
| 1559 | |
| 1560 | add_cmd ("gdb-scripts", class_info, info_auto_load_gdb_scripts, |
| 1561 | _("Print the list of automatically loaded sequences of commands.\n\ |
| 1562 | Usage: info auto-load gdb-scripts [REGEXP]"), |
| 1563 | auto_load_info_cmdlist_get ()); |
| 1564 | |
| 1565 | add_setshow_boolean_cmd ("local-gdbinit", class_support, |
| 1566 | &auto_load_local_gdbinit, _("\ |
| 1567 | Enable or disable auto-loading of .gdbinit script in current directory."), _("\ |
| 1568 | Show whether auto-loading .gdbinit script in current directory is enabled."), |
| 1569 | _("\ |
| 1570 | If enabled, canned sequences of commands are loaded when debugger starts\n\ |
| 1571 | from .gdbinit file in current directory. Such files are deprecated,\n\ |
| 1572 | use a script associated with inferior executable file instead.\n\ |
| 1573 | This options has security implications for untrusted inferiors."), |
| 1574 | NULL, show_auto_load_local_gdbinit, |
| 1575 | auto_load_set_cmdlist_get (), |
| 1576 | auto_load_show_cmdlist_get ()); |
| 1577 | |
| 1578 | add_cmd ("local-gdbinit", class_info, info_auto_load_local_gdbinit, |
| 1579 | _("Print whether current directory .gdbinit file has been loaded.\n\ |
| 1580 | Usage: info auto-load local-gdbinit"), |
| 1581 | auto_load_info_cmdlist_get ()); |
| 1582 | |
| 1583 | auto_load_dir = xstrdup (AUTO_LOAD_DIR); |
| 1584 | |
| 1585 | suffix = ext_lang_auto_load_suffix (get_ext_lang_defn (EXT_LANG_GDB)); |
| 1586 | gdb_name_help |
| 1587 | = xstrprintf (_("\ |
| 1588 | GDB scripts: OBJFILE%s\n"), |
| 1589 | suffix); |
| 1590 | python_name_help = NULL; |
| 1591 | #ifdef HAVE_PYTHON |
| 1592 | suffix = ext_lang_auto_load_suffix (get_ext_lang_defn (EXT_LANG_PYTHON)); |
| 1593 | python_name_help |
| 1594 | = xstrprintf (_("\ |
| 1595 | Python scripts: OBJFILE%s\n"), |
| 1596 | suffix); |
| 1597 | #endif |
| 1598 | guile_name_help = NULL; |
| 1599 | #ifdef HAVE_GUILE |
| 1600 | suffix = ext_lang_auto_load_suffix (get_ext_lang_defn (EXT_LANG_GUILE)); |
| 1601 | guile_name_help |
| 1602 | = xstrprintf (_("\ |
| 1603 | Guile scripts: OBJFILE%s\n"), |
| 1604 | suffix); |
| 1605 | #endif |
| 1606 | scripts_directory_help |
| 1607 | = xstrprintf (_("\ |
| 1608 | Automatically loaded scripts are located in one of the directories listed\n\ |
| 1609 | by this option.\n\ |
| 1610 | \n\ |
| 1611 | Script names:\n\ |
| 1612 | %s%s%s\ |
| 1613 | \n\ |
| 1614 | This option is ignored for the kinds of scripts \ |
| 1615 | having 'set auto-load ... off'.\n\ |
| 1616 | Directories listed here need to be present also \ |
| 1617 | in the 'set auto-load safe-path'\n\ |
| 1618 | option."), |
| 1619 | gdb_name_help, |
| 1620 | python_name_help ? python_name_help : "", |
| 1621 | guile_name_help ? guile_name_help : ""); |
| 1622 | |
| 1623 | add_setshow_optional_filename_cmd ("scripts-directory", class_support, |
| 1624 | &auto_load_dir, _("\ |
| 1625 | Set the list of directories from which to load auto-loaded scripts."), _("\ |
| 1626 | Show the list of directories from which to load auto-loaded scripts."), |
| 1627 | scripts_directory_help, |
| 1628 | set_auto_load_dir, show_auto_load_dir, |
| 1629 | auto_load_set_cmdlist_get (), |
| 1630 | auto_load_show_cmdlist_get ()); |
| 1631 | xfree (scripts_directory_help); |
| 1632 | xfree (python_name_help); |
| 1633 | xfree (gdb_name_help); |
| 1634 | xfree (guile_name_help); |
| 1635 | |
| 1636 | auto_load_safe_path = xstrdup (AUTO_LOAD_SAFE_PATH); |
| 1637 | auto_load_safe_path_vec_update (); |
| 1638 | add_setshow_optional_filename_cmd ("safe-path", class_support, |
| 1639 | &auto_load_safe_path, _("\ |
| 1640 | Set the list of files and directories that are safe for auto-loading."), _("\ |
| 1641 | Show the list of files and directories that are safe for auto-loading."), _("\ |
| 1642 | Various files loaded automatically for the 'set auto-load ...' options must\n\ |
| 1643 | be located in one of the directories listed by this option. Warning will be\n\ |
| 1644 | printed and file will not be used otherwise.\n\ |
| 1645 | You can mix both directory and filename entries.\n\ |
| 1646 | Setting this parameter to an empty list resets it to its default value.\n\ |
| 1647 | Setting this parameter to '/' (without the quotes) allows any file\n\ |
| 1648 | for the 'set auto-load ...' options. Each path entry can be also shell\n\ |
| 1649 | wildcard pattern; '*' does not match directory separator.\n\ |
| 1650 | This option is ignored for the kinds of files having 'set auto-load ... off'.\n\ |
| 1651 | This options has security implications for untrusted inferiors."), |
| 1652 | set_auto_load_safe_path, |
| 1653 | show_auto_load_safe_path, |
| 1654 | auto_load_set_cmdlist_get (), |
| 1655 | auto_load_show_cmdlist_get ()); |
| 1656 | gdb::observers::gdb_datadir_changed.attach (auto_load_gdb_datadir_changed); |
| 1657 | |
| 1658 | cmd = add_cmd ("add-auto-load-safe-path", class_support, |
| 1659 | add_auto_load_safe_path, |
| 1660 | _("Add entries to the list of directories from which it is safe " |
| 1661 | "to auto-load files.\n\ |
| 1662 | See the commands 'set auto-load safe-path' and 'show auto-load safe-path' to\n\ |
| 1663 | access the current full list setting."), |
| 1664 | &cmdlist); |
| 1665 | set_cmd_completer (cmd, filename_completer); |
| 1666 | |
| 1667 | cmd = add_cmd ("add-auto-load-scripts-directory", class_support, |
| 1668 | add_auto_load_dir, |
| 1669 | _("Add entries to the list of directories from which to load " |
| 1670 | "auto-loaded scripts.\n\ |
| 1671 | See the commands 'set auto-load scripts-directory' and\n\ |
| 1672 | 'show auto-load scripts-directory' to access the current full list setting."), |
| 1673 | &cmdlist); |
| 1674 | set_cmd_completer (cmd, filename_completer); |
| 1675 | |
| 1676 | add_setshow_boolean_cmd ("auto-load", class_maintenance, |
| 1677 | &debug_auto_load, _("\ |
| 1678 | Set auto-load verifications debugging."), _("\ |
| 1679 | Show auto-load verifications debugging."), _("\ |
| 1680 | When non-zero, debugging output for files of 'set auto-load ...'\n\ |
| 1681 | is displayed."), |
| 1682 | NULL, show_debug_auto_load, |
| 1683 | &setdebuglist, &showdebuglist); |
| 1684 | } |